Java
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Getting Started with OSHI
OSHI (Operating System and Hardware Information) is a free, open-source Java library used to retrieve system information like CPU, memory,…
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Objenesis Hello World Example
In Java, object instantiation typically involves invoking a constructor using the new keyword or reflective instantiation via Constructor.newInstance(). However, these…
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Rate Limiting in Java: Implementing Per-User Throttling with Redis Buckets
To protect APIs from abuse and ensure fair usage, rate limiting is essential. It prevents users or clients from overwhelming…
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Zero Downtime Deployments with Kubernetes and Argo Rollouts
Delivering new features quickly is important, but not at the cost of application stability. In modern DevOps workflows, zero downtime…
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Jolokia Spring Boot Integration Example
Monitoring and managing Spring Boot applications can be greatly enhanced using tools like Jolokia, which exposes JMX MBeans over HTTP.…
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How to Use Avro to Serialize and Deserialize Dates
Working with dates and timestamps in data serialization can be tricky, especially when consistency and precision matter. Avro, a popular…
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Spring Boot 3 + Record-Based DTOs: Cleaner APIs with Better Type Safety
Java 16 introduced records, a new kind of class designed to model immutable data. With the advent of Spring Boot…
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Implementing Multi-Tenant Security with Spring Boot and Spring Security
Multi-tenancy is a software architecture where a single application instance serves multiple tenants (clients), each with its own data and…
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How to Secure REST APIs with Spring Security and JWT (2025 Edition)
In 2025, stateless authentication remains the go-to approach for securing REST APIs. Spring Security combined with JWT (JSON Web Tokens)…
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